The safest way to acquire the correct driver is through the portal: Visit the Acer Support Drivers and Manuals page.
Often, the executable file ( .exe ) you download from Acer will fail on Windows 7, saying "Operating System not supported." In this case, you must install the driver manually. acer aspire 4730z bluetooth driver windows 7
Finding the correct Bluetooth driver for an older machine like the Acer Aspire 4730z The safest way to acquire the correct driver
: Click "Yes" if prompted by Windows to allow the program to make changes. acer aspire 4730z bluetooth driver windows 7